Please add in documentation (in "Getting Started" section) that installation of STM32 Cube Programmer is required to upload code with Arduino IDE.
Add link where to download file: https://www.st.com/en/development-tools/stm32cubeprog.html#get-software
Without that installed, it give errors that it can't find STM32_programmer_CLI file.
I'm not sure if that was installed automatically before with board installation, but now on 2 computers I needed to do that manually.
Thanks!